petsc-3.14.6 2021-03-30

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VecMaxPointwiseDivide

Computes the maximum of the componentwise division max = max_i abs(x_i/y_i).

Synopsis

#include "petscvec.h"   
PetscErrorCode  VecMaxPointwiseDivide(Vec x,Vec y,PetscReal *max)

Logically Collective on Vec

Input Parameters

x, y

- the vectors

Output Parameter

max

- the result

Notes

x and y may be the same vector if a particular y_i is zero, it is treated as 1 in the above formula

See Also

VecPointwiseDivide(), VecPointwiseMult(), VecPointwiseMax(), VecPointwiseMin(), VecPointwiseMaxAbs()

Level

advanced

Location

src/vec/vec/interface/rvector.c

Implementations

VecMaxPointwiseDivide_Nest in src/vec/vec/impls/nest/vecnest.c
VecMaxPointwiseDivide_Seq in src/vec/vec/impls/seq/dvec2.c

Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages